Error Using NanoGUI with GLFW(c++)

[nikhilanayak]

I recently started trying to use NanoGUI with GLFW and I keep getting an error.
The specific lines where this error comes from are these:

nanogui::Screen *screen = new nanogui::Screen;
screen->initialize(window, true);

These lines give me this error:

"public: __thiscall nanogui::Screen::Screen(void)" (??0Screen@nanogui@@QAE@XZ) referenced in function _main	OpenGLProject

This is probably a really simple problem but I don't know much c++ and can't seem to figure this out.
Any help would be appreciated.
Thanks!

[Petross404]

Do you mean that you get this error during linking? If yes, you must be missing some linker flags.

[William-Baker]

If you're using Visual Studio make sure you've added all the source files to the project directly (so they appear in the solution explorer, use a filter to tidy them up for you). Although I would strongly suggest against using visual studio community & windows. Cross-compiling from Linux, learning CMake and using Ninja will make your life a lot easier when integrating libraries to your project. Apologies if you're using a build system already.

[nikhilanayak]

@Petross404 Yeah, during the linking I'm getting these errors. What flags should I be adding.

[nikhilanayak]

Actually, I added all the files from nanogui/src. Now, all of the OpenGL functions become undeclared(glCompileShader, glCreateProgram, etc.). Any idea why?